<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Document</title>
    <script src="jquery-2.0.0.min.js"></script>
</head>
<body>
    <!-- <div id="dv"></div>
    <input type="button" value="btn" id="btn1"> -->
    <script>
        // $(#btn1).click=function(){
        //     $(#dv).css(width:600px;height:600px;backgroundcolor:pink;)
        // }
        var input = readline().split(" ");
        var a = input[0];
        var b = input[0];
        print(parseInt(a+b));
    </script>
    
</body>
</html>